TEMS™ OnDevice vs TestK
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TEMS™ OnDevice
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When used together with your TEMS Investigation or TEMS Paragon PC software, the TEMS Ondevice app can test true user experience in high-speed data networks like 5G and LTE-A. The app itself will initiate data service testing on your iPhone. Tests can be issued either manually in the app or remotely via your TEMS software for automated testing. These tests are often performed while moving to test different network conditions so accurate location is needed. These tests are also performed to test from a user perspective, which many times involves network traffic during an ongoing phone call, which requires the TEMS Ondevice app to have persistent location. However location updates are only activated while a test is active. As soon as the test is done, the TEMS Ondevice app will stop the location updates. The supported services are: • HTTP GET / POST for file transfers • HTTP Get for web browsing • Ping • iPerf UL/DL for TCP or UDP TEMS Investigation and TEMS Paragon are licensed* 'PC-based' tools developed for measuring the performance and quality of wireless networks. TEMS tools are used for network deployment, troubleshooting, optimization and site verification. If you have any questions regarding TEMS tools or the TEMS Ondevice app, please contact Infovista support or your local sales representative. * The ‘PC-based’ tools and licenses required can be obtained from InfoVista.
TestK
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With this App you can test any iOS device through USB commands. In this way you will be able to perform a complete verification of the hardware status of iPhones and iPads, in an automated and secure way. If you are using the kemyko service, and you connect iOS devices to a kemykobox, the identification and results of all the tests you perform will be automatically saved for you and you can use them directly in grading algorithms, statistics, etc. The tests carried out include: - Battery status / num. of charge cycles; - USB; - Activation Status; - Find My iPhone; - Wifi; - Bluetooth; - Accelerometer; - Vibration; - GPS; - Cameras; - Physical buttons; - Screen; - Speaker; - Flash; - Microphone; - Proximity sensor; - Light sensor; - Telephony; In addition to the tests carried out by the App, the kemyko service allows the employee who carries out the tests to add additional information, such as the visual status of the device, or the presence of accessories in the packaging (charger, cable, test tool). ejecting SIM cards, etc.)
Screenshots
Verdict
The clearest difference is update cadence: TestK at every 2 months against TEMS™ OnDevice's every 6 months. TestK also leads on iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TEMS™ OnDevice ships an update every 6 months, TestK every 2 months. The most recent releases landed on October 6, 2026 and October 25, 2026 respectively.
| Parameter | TEMS™ OnDevice | TestK |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | InfoVista | Maine Avenue Technologies SL |
In-app purchases
TEMS™ OnDevice
No in-app purchases
TestK
No in-app purchases









